30144436 has 12 divisors (see below), whose sum is σ = 60288928. Its totient is φ = 12919032.

The previous prime is 30144407. The next prime is 30144449. The reversal of 30144436 is 63444103.

It is a happy number.

30144436 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 30144436.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538266 + ... + 538321.

Almost surely, 2^30144436 is an apocalyptic number.

It is an amenable number.

30144436 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30144436 is a wasteful number, since it uses less digits than its factorization.

30144436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076598 (or 1076596 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 30144436 is about 5490.3948856162. The cubic root of 30144436 is about 311.2211149358.

Adding to 30144436 its reverse (63444103), we get a palindrome (93588539).

The spelling of 30144436 in words is "thirty million, one hundred forty-four thousand, four hundred thirty-six".